The C8188 from Werlatone is a 3-Port Uni-Directional Coupler that operates from 30 to 3000 MHz. It provides a coupling factor of 20 dB (± 1 dB deviation) with directivity of 18 dB and an insertion loss of less than 2.4 dB. This coupler can handle up to 20 W of CW input power and has a VSWR of 1.35:1. One end of the coupled line is internally terminated, while the other end serves as a coupled port. It is available in a module that measures 6 x 1.5 x 1.1 inches with optional SMA or N-Type Female connectors and is suitable for applications such as sampling and monitoring power in one direction at a given time.